Sanitary preserving can or container



Dec. 22, 1931. H. KARL 1,837,621

SANITARY PRESERVING CAN OR CONTAINER Filed March 12. 1927 Patented Dec.22, 1931 UNITED STATES HEINRICH KARL, OF JERSEY CITY, NEW JERSEYSANITARY PRESERVING CAN OR CONTAINER Application filed March 12, 1927.Serial No. 174,917. a

This invention relates to a new method for closing the can, etc.,hermetically and for opening it only on the top without tearing up thesheet metal of which said top part is made, whereby it is prevented thatmetal particles fall into the eatables contained in the can, etc., andso prevent 1njuries to the intestinal organs of the consumer andtherefore prevent severe diseases that may develop after said injuries.

In this invention there are two modifications shown and described, oneof which is characterized by having a cover for the can opening that isto be taken off entirely when the can is to be opened, which in thisrespect belongs to the kind already known in the art, while in the othermodification which is new in the art the part that covers the openingmust be bent for uncovering the opening of the container such as a can,etc. Both modifications have certain new and common characteristics intheir construction that serve for preventing particles from bindingmaterials that will be broken at the opening of the can, etc., fromfalling lnto the contents of the container and which serve also forpermitting the sweeping ofi of such particles or dust, etc., when thecan has been alread opened whereby however these partic es, etc., willnot fall into the contents of the container. 4

More particularly the invention consists partly of the methodof formingthe top of the can, etc., either of two or more sections according tothe shape or contents of the can (or box), etc., and the number ofopenings therein, and if the top consists of more than two sectionsthese sections are then united with a binder at a certain cutting lineof two (or more) of the sections and ifthetop part is made of only twosections the binder serves for uniting the section that covers theopening with the section that leaves the opening. Another characteristicof the invention is to bend up or roll up or fold up that edge of saidlast. mentioned section that surrounds. wholly or partly the opening oropenings-of the can and in such manner that the bent or folded partforms the highest point of the container when the section is taken awaythat coversthe openmodifications is to shape the uppermost section thatforms the cover for the opening of the container much larger than theopening, so that the sealing line is very much further distanced fromthe border of the opening than it is designed in those containers thatare known in the art, and this is made for the purpose of preventingparticles of the binder from falling into the contents of thecontainerat the opening thereof.

A preferable embodiment of the invention is illustrated 'by theaccompanying drawings, in which like reference characters indicate likeparts, and of which- Figure 1 is a sectional view 'of part of the canand part of the top thereof;

Figure 2 is a sectional view of 'a part of another can and also of apart of the top thereof, which represents a slight modification ofthatshown in Figure 1 and supposed to be made wholly of sheet metal;

Figure 3 is a top view of the container or can, which top part is madeof two sections which are so oined that the string or wire, etc., mustbe laid in two'right angles;

Figure 4: shows in elevation the can whose top is shown in Figure 3;

Figure 5 is a top view of the container with a large and a smallopening; the top part is therefore made of three sections of which thosethat cover the openings are cut out in curves-that form the lines onwhich both sections are joined to the third, and the wire. etc. mustthen be laid also in the curved line of these sections; Figure 6 is atop view of the container whose toppart is made of two sections of whichthe one that covers the opening is cut out in a manner that the stringor wire etc. must be laid in a right angle;

Figure 7 is a top view of the container cover that is made of twosections of which side of the box, the string etc. therefore must belaid accordingly into a position that forms two right angles; and

Figure 9 shows in a perspective view the can body of Figure 8, which canmay be filled with sardines and having the cover removed. According tothe object of the invention the top part a or b or b or; 0 must be socon structed that no -metal particles nor other substances can fall intothe contents when the can etc. is being opened. For preventing also thefalling of particles of the binder into the contents of the can etc. oneof the sections of the top part, which I will term the section or piecethat leaves or forms the opening or openings, must have the bent up orrolled up edge 10 of Figure 1, or 11 of Figure 2, respectively. If thecover is made of a single piece, as illustrated in Figure 8,

then it must be the edge around the opening of the box or can etc. (thatcorresponds -more or less with the edge of the section that covers thatopening) that must be bent upward or rolled up or folded as exemplifiedin Figure 9, and indicated by the reference numeral 12. This bent up orrolled or folded part 10, 11 or 12 forms a barrier that prevents thefalling of particles of the binder 13 into the contents of the can whenthe sections that cover the openings, namely, the upper section 14 ofFigure 1, or 15 of Figure 2, or the cover 0 shown in Figure 8, are beingremoved from the container or bent up when the wire or string 16 ispulled away, as will be more plainly explained afterward. Preferably,the top part is to be put on the can or container etc. in the nonsealedcondition, that is, the section that forms the opening or openings andin certain cases also the sections that cover the openings and 6 must befastened to the can body in the manner as shown in Figures 1 or 2,respectively. If the container is madeof glass, porcelain, orearthenware and not of sheet metal, then a method must be chosen asshown in Figure 1, which is also subject of my patent application,Serial No. l65,611-, filed February 3, 1927. But if the can body is madeof sheet metal the outer edge-parts of the top portion may be folded up'with the upper edge-part of the can body as illus- Ssee, for instance,Figures 1, 2, 3, 4, 5*

.some are indicated by dotted lines.

trated in Figure 2, which method is usually employed in preserving cans.

Referring more particularly to Figures 1, i

2, 3, 4, 5, (S and 7, the section 18 is the section in which the openingor openings are left and to which section the characters a, b, 0, etc.

are added according to the shape thereof.'

The borders are so cut that some thereof serve for being fastened to thecan. These borders are indicated by 20 in Figure 1 and for the otherfigures the characters a or b or 0, etc. are added for making thedistinction. This part 20,. 20a, 20b, etc. first is to be bent downwardto form a right angle, as shown at 21 in Figure 1 or 21a in Figure 2,and when the can etc. is to be closedherinetically it must be bentagaineither in the manner shown in Figure 1 or in Figure 2 as the shape ofthe can etc. necessitates it or according to the material of which thecan is made. If the can 22 is made of glass or earthenware, thcn themethod must be employed as shown in Figure 1, where a string 23 or wireetc. coated with a binder 24 such as wax, tar, rosin, etc. or a softsolder, is laid between said part of the border and the can, preferablyunderneath a somewhat outwardly projecting part 25 thereof. The lowerpart of the portion 20 will then be pressed against said outwardlyprojecting part 25 thereby squashing the still soft binder whereby thecan. Willbe hermeti cally closed at that part. If the can is made ofsheet metal then the border 20 simply needs to be folded up with theborder part of the can as shown in Figure 2 in-which the can isindicated by 22a and the part of the section 18a that is to be foldedtherewith is indicated by 20a.

Now we will assume that the cover is made only of two sections, althoughin some cases three sections would be more practical, (see, forinstance, the can of Figure 5 where there are two openingsprovided for,of which one is small and the other large, and that'aro Covered by thesections 14?), 147), respectively; the small opening may serve forpouring out the contents only in small quantities, .while the large onemay serve for emptying border 10 or 11 may have any of the mostpractical shapes and in Figures 3, 5, 6 and 7 This border or its edge ispreferably bent up, as shown in Figure 1, but it may be rolled up,

etc.,. as shown in Figure2 and has to form the highest part of thesection 18, 18a, 18b, 18c, 18d, 18c and 29. This part 10 may be bent upas high-as one eighth of an inch at the point that is farthest from theupper edge of the can 22, 22a etc., but it can be much lower at thepoint where it meets with that edge of the can. In Fi re'3 the highlybentup part is indicated by 10' while the little bent-up parts areindicated by 10". The purpose of making the bent-up edge lower at thepart 10 is to facilitate the fastening of this section 18, 18a etc. tothe can and also to facilitate the fastening of the other section 14, 15to the can. This section 14, 15 serves for covering the opening leftopen by the section 18, 18a etc. and is to receive a shape that exceeclssomewhat that of the opening. If desired the shape of this section 14,15 etc. can be far in excess of that of the opening. Such an example isshown in Figure 2 where the section 15 extends as far beyond the rolledup border 11' that it nearly covers the whole top of the can. This issimply for the purpose to prevent particles of the binder to come toonear to the edge of the opening when the can is being opened, and bylifting somewhat the section 15, as shown by the clotted lines, all suchparticles can be swept off before this section is entirely taken off thecan. As shown in Figure 4, the section 14a, that may be identical withthe section 14 of Figure 1 'or 15 of Figure 2, is similarly fastened tothe can 226 as is the section 18?) and the method of fastening may bethat shown in Figure 1 or Figure 2, or any other suitable method may beemployed. The edgepart 26 or 27 that lays upon the section 18, 18a etc.is bent down or slanted and preferably should touch the upper surface ofthat section 18. The wire or string 16 etc. is to be laid very tightlyagainst the edge. 26 or 27 and corresponding surface of the section- 18,18a etc. and the binder 13 then must be applied so that it covers thatwire or string 16 etc., and at the same time binds parts of the section14 or 15 with the. section 18, 1811 etc. The wire or string extends overthe edge wherethe sections are fastened to the can and the consumersimply needs to grip that portion of wire or string and pull therewiththe whole wire 16 away from the border 26, 27 when he wants to open thecan. The binder 13 breaks thereby and the section 14 or 15 can be liftedwith the fingers or with some tool, as a knife etc.-, whereby the metalsheet of that section will be bent (but not broken) at a certain linethat corresponds with the points on which the border 26 or 27 reachesthe upper edge of the can and this bending line is shown by a dottedline in Figures 3, 5 and 6 and is indicated by the reference numeral28?), 28c and 2803, respectively. Also the cover 0 on the box shown inFigure 8 must be bent when the box is to be opened and in this case thebending line corresponds with the left-side edge of the box. If thesections 14a, 14b and 140 are fastened to the can in a manner as thesection 18 of Figure 1 is fastened thereto, then it will be possible totake these sections entirely off. In the earthenware etc., it will notbe necessary to make a special section 18e since this part may then beformed in one piece by the can part 22. A somewhatsimilar proposition ismade in the modification shown in Figures 8 and 9 where the upper edgeof the can body 22f is bent so that it makes a horizontal surface 29that surrounds the opening 30 and the edge 12 of this surface is bent up(see Figure 9).

Having described herewith a practical and simple method of safeguardingthe people that use canned foods from deadly diseases, I wish to expressmy view that minor changes are possib parting from the spirit and scopethereof.

What is claimed is:

. 1. In a preserving container having a bottom and side walls, a top forsaid container having an air opening therein, a cover for said opening,one portion of the cover being seamed to the side walls, the remainingportion of the cover extending beyond the opening and being secured tothe top at a substantial'distance from said opening by means of bindingmaterial whereby, when the binding material is broken, parts thereofwill not fall into the opening.

" 2. In a preserving container having a bottom and side walls, a top forsaid container havin an air opening therein and a bent edge orderingsaid opening, a cover for said opening extending beyond the opening andbeing secured to the top by means'of binding material at such distancefrom ;aid bent edge that a space is left between said bent edge and theedge of the cover, said space left empty and being spaced horizontallyconsiderably over its height, and being of such proportion that, whenthe container is being opened and therefore the binding material broken,parts thereof or metal par ticles will not fall into the opening.

Respectfully submitted.

- HEINRICH KARL.

e in this invention without de-

